Multifractional Brownian Motion and Quantum-Behaved Partial Swarm Optimization for Bearing Degradation Forecasting

<table class="table-group" id="tab2"><tr><td><table class="table"><tr><td class="thead-hr" colspan="3"><hr/></td></tr><tr class="thead"><td class="align_left">Model</td><td class="align_center"><i>μ</i></td><td class="align_center"><i>σ</i></td></tr><tr><td class="thead-hr" colspan="3"><hr/></td></tr><tr><td class="align_left">FBm</td><td class="align_center">0.1345</td><td class="align_center">321.9634</td></tr><tr><td class="align_left">PSO + mfBm</td><td class="align_center">78.3264</td><td class="align_center">4.2128<i>e</i> + 04</td></tr><tr><td class="align_left">QPSO + mfBm</td><td class="align_center">97.6945</td><td class="align_center">2.7573<i>e</i> + 05</td></tr><tr class="table-tr"><td colspan="3"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>The parameters value of model.</div>

Complexity

tab2

Table 2

Table 2: Multifractional Brownian Motion and Quantum-Behaved Partial Swarm Optimization for Bearing Degradation Forecasting 